Re: [time-nuts] Parts (Mouser) for the PICTIC II
To edit, send project to shopping cart, edit shopping cart, save as project with revised name Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Bob Camp Sent: Friday, July 09, 2010 1:08 AM To: mccor...@ptialaska.net; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Parts (Mouser) for the PICTIC II Hi Another thing I think we need to get on the project is Q4: 512-2N7000TAFarichild's version at 0.13 each. Since I didn't create the project I don't seem to be able to edit it Bob On Jul 8, 2010, at 7:26 PM, Richard H McCorkle wrote: Bob, Instead of the 3266 series go to the 3296 series 5K Trimmer, top adjust 652-3296W-1-502LF 7100 in stock 652-3296Y-1-502LF 590 in stock 200 Trimmer, top adjust 652-3296W-1-201LF 1090 in stock 652-3296Y-1-201LF 830 in stock Richard Hi The real question somebody needs to answer is - will it work with side adjust trimmers? If not, then we're going to have to find another source to get the trimmers from. The project on Mouser shows the 3266p trimmer. AFIK the correct part is the 3266w. The board also appears to be laid out for the 3266y. Another alternative is the 3266x. All the details of what's what are at: http://www.bourns.com/data/global/pdfs/3266.pdf My guess is that the 3266p isn't going to work. The 3266y is even harder to get than the 3266w. The 3266x looks problematic when you go to do the adjustment Rational solutions: 1) Jameco shows the 3266w as ships today in 5 K ohms. Who knows how many they actually have 2) 3266w is available in the 2K ohm flavor at Mouser (lots in stock). If you change R16 and R23 to 1K ohms, the 2K pot should work fine. That makes them the same value as R5 and R6. One fewer line item ... I'd vote for option 2. Bob On Jul 8, 2010, at 2:55 PM, Lester Veenstra wrote: Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Bob, I included the option to go with a TTL output for users without a serial port that might need to feed TTL into an internal USB converter in their project or to drive a PC port directly with a short cable. Including the extra pads on the board and the TTL invert flag in the code adds no cost. But the option of adding appropriate jumpers or components allows TTL signals of either polarity to be used with a USB converter. I am not certain of the requirements for the different USB converters that might be available, but having normal or inverted TTL and RS-232 signals as options should provide enough flexibility to use a wide variety of USB converter options. I recommend the MAX232 be installed for normal serial port use as it will drive longer lines to a PC, with an RS-232 to USB dongle added as a simple solution if a serial port is not available. I socketed all the devices on my board to simplify troubleshooting and repair should that be required in the future. At the minimum the PIC should be socketed to simplify reprogramming as new code is developed. I haven't lost a single 74AC74 input chip in 3 years of testing but a socket there is also a good idea. The XO and sample caps should be selected for the application and desired resolution. Three pads are provided for the sample caps so either 0.1 or 0.2 lead spacing can be accommodated. Use ceramic NPO/COG caps of 5% or better tolerance for best results. No additional parts will be required during calibration. The 10M clock XO was selected as the default as many users have a 10M OCXO or GPSDO they may want to use as the counter reference. In a typical GPS monitoring application where the house 1PPS is compared to GPS 1PPS with 1ns resolution the delay will normally be less than 10us and a 30PPM XO will provide sufficient stability to return accurate data. Over longer measurement intervals a higher stability clock would be needed to insure the clock drifted less than 1 cycle over the measurement interval to insure accurate data would be returned. For faster clocks 3x or 5x tuned multipliers or doublers can be used to derive the counter clock from a slower source. No clock conditioning is included on board so for accuracy over longer measurement intervals an external high-stability TTL clock needs to be supplied by the user. Use of a high stability clock is possible by using an XO for the interpolator calibration, storing the calibration values in EEPROM, turning off the AutoCal routine, and switching to the external source for normal operation. If a faster external source than 10M is available the XO and sample capacitor values should be chosen to match the faster external rate you plan to use. The lower stability XO would be used during initial calibration to insure frequent coincidences between the inputs and clock as the XO drifts in frequency. As the inputs pass thru coincidence with the clock the interpolators pass thru their min and max limits, and the more times they pass thru the limits during a calibration cycle the more likely the data will correctly reflect those limits. Peak detection of the interpolator data over a long period ( 1 hr) will capture the min and max limits and can then be used to determine the offset and span of the interpolators. When a high stability timebase and high stability sources are used long periods between coincidences can occur. This could result in improper peak values returned over a calibration cycle, so the AutoCal routine should either use much longer calibration intervals to capture the peak limits or be disabled when a high stability clock is used. During setup the peak detector values can be displayed continuously and can be reset manually after an adjustment to start a new calibration cycle. Apply two 1PPS inputs to the counter and adjust the gain trimmers to give identical 800 count p-p spans and the offset trimmers to center the span in the ADC range. A difference in the channel gains will introduce an error in the final result, so a close gain match is desired. The offsets are not as critical but centering the data in the ADC span will provide a wider range the data can drift over temperature and age and stay within the ADC span. A series of adjust, reset, sample, and repeat cycles will be required to get the calibration values in the ballpark. Allow a full calibration cycle to complete to store the values determined in EEPROM. The counter will then use the stored values to correct the data mathematically to remove the offset and adjust the span for the desired gain. Once the interpolators have been calibrated the peak detector display and AutoCal routines can be disabled and the external high stability clock can be selected as the counter timebase for normal operation. Richard Hi A few other things to consider: The MAX 232 is an either / or with a transistor and a couple of resistors. Not a lot of money either way. I'd just go for the MAX and leave out the transistor. Putting
Re: [time-nuts] Parts (Mouser) for the PICTIC II
q4 and the 3/8 trimmers are in my list. On Thu, Jul 8, 2010 at 8:34 PM, Bob Bownes bow...@gmail.com wrote: I'll get these 2 corrections in tonight. I was wondering if the 3/8 parts would fit. On Thu, Jul 8, 2010 at 8:07 PM, Bob Camp li...@rtty.us wrote: Hi Another thing I think we need to get on the project is Q4: 512-2N7000TA Farichild's version at 0.13 each. Since I didn't create the project I don't seem to be able to edit it Bob On Jul 8, 2010, at 7:26 PM, Richard H McCorkle wrote: Bob, Instead of the 3266 series go to the 3296 series 5K Trimmer, top adjust 652-3296W-1-502LF 7100 in stock 652-3296Y-1-502LF 590 in stock 200 Trimmer, top adjust 652-3296W-1-201LF 1090 in stock 652-3296Y-1-201LF 830 in stock Richard Hi The real question somebody needs to answer is - will it work with side adjust trimmers? If not, then we're going to have to find another source to get the trimmers from. The project on Mouser shows the 3266p trimmer. AFIK the correct part is the 3266w. The board also appears to be laid out for the 3266y. Another alternative is the 3266x. All the details of what's what are at: http://www.bourns.com/data/global/pdfs/3266.pdf My guess is that the 3266p isn't going to work. The 3266y is even harder to get than the 3266w. The 3266x looks problematic when you go to do the adjustment Rational solutions: 1) Jameco shows the 3266w as ships today in 5 K ohms. Who knows how many they actually have 2) 3266w is available in the 2K ohm flavor at Mouser (lots in stock). If you change R16 and R23 to 1K ohms, the 2K pot should work fine. That makes them the same value as R5 and R6. One fewer line item ... I'd vote for option 2. Bob On Jul 8, 2010, at 2:55 PM, Lester Veenstra wrote: Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Hi The RS-232 USB dongles are $4 these days. They are enough cheaper that the TTL ones that the MAX232 and misc parts still don't make them more expensive. Bob Sent from my iPhone On Jul 9, 2010, at 5:28 PM, Richard H McCorkle mccor...@ptialaska.net wrote: Bob, I included the option to go with a TTL output for users without a serial port that might need to feed TTL into an internal USB converter in their project or to drive a PC port directly with a short cable. Including the extra pads on the board and the TTL invert flag in the code adds no cost. But the option of adding appropriate jumpers or components allows TTL signals of either polarity to be used with a USB converter. I am not certain of the requirements for the different USB converters that might be available, but having normal or inverted TTL and RS-232 signals as options should provide enough flexibility to use a wide variety of USB converter options. I recommend the MAX232 be installed for normal serial port use as it will drive longer lines to a PC, with an RS-232 to USB dongle added as a simple solution if a serial port is not available. I socketed all the devices on my board to simplify troubleshooting and repair should that be required in the future. At the minimum the PIC should be socketed to simplify reprogramming as new code is developed. I haven't lost a single 74AC74 input chip in 3 years of testing but a socket there is also a good idea. The XO and sample caps should be selected for the application and desired resolution. Three pads are provided for the sample caps so either 0.1” or 0.2” lead spacing can be accommodated. Use ceramic NPO/COG caps of 5% or better tolerance for best results. No additional parts will be required during calibration. The 10M clock XO was selected as the default as many users have a 10M OCXO or GPSDO they may want to use as the counter reference. In a typical GPS monitoring application where the house 1PPS is compared to GPS 1PPS with 1ns resolution the delay will normally be less than 10us and a 30PPM XO will provide sufficient stability to return accurate data. Over longer measurement intervals a higher stability clock would be needed to insure the clock drifted less than 1 cycle over the measurement interval to insure accurate data would be returned. For faster clocks 3x or 5x tuned multipliers or doublers can be used to derive the counter clock from a slower source. No clock conditioning is included on board so for accuracy over longer measurement intervals an external high-stability TTL clock needs to be supplied by the user. Use of a high stability clock is possible by using an XO for the interpolator calibration, storing the calibration values in EEPROM, turning off the AutoCal routine, and switching to the external source for normal operation. If a faster external source than 10M is available the XO and sample capacitor values should be chosen to match the faster external rate you plan to use. The lower stability XO would be used during initial calibration to insure frequent coincidences between the inputs and clock as the XO drifts in frequency. As the inputs pass thru coincidence with the clock the interpolators pass thru their min and max limits, and the more times they pass thru the limits during a calibration cycle the more likely the data will correctly reflect those limits. Peak detection of the interpolator data over a long period ( 1 hr) will capture the min and max limits and can then be used to determine the offset and span of the interpolators. When a high stability timebase and high stability sources are used long periods between coincidences can occur. This could result in improper peak values returned over a calibration cycle, so the AutoCal routine should either use much longer calibration intervals to capture the peak limits or be disabled when a high stability clock is used. During setup the peak detector values can be displayed continuously and can be reset manually after an adjustment to start a new calibration cycle. Apply two 1PPS inputs to the counter and adjust the gain trimmers to give identical 800 count p-p spans and the offset trimmers to center the span in the ADC range. A difference in the channel gains will introduce an error in the final result, so a close gain match is desired. The offsets are not as critical but centering the data in the ADC span will provide a wider range the data can drift over temperature and age and stay within the ADC span. A series of adjust, reset, sample, and repeat cycles will be required to get the calibration values in the ballpark. Allow a full calibration cycle to complete to store the values determined in EEPROM. The counter will then use the stored values to correct the data mathematically to remove the offset and adjust the span for the desired gain. Once the interpolators have been calibrated the peak detector display and AutoCal routines can be
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Hi The real question somebody needs to answer is - will it work with side adjust trimmers? If not, then we're going to have to find another source to get the trimmers from. The project on Mouser shows the 3266p trimmer. AFIK the correct part is the 3266w. The board also appears to be laid out for the 3266y. Another alternative is the 3266x. All the details of what's what are at: http://www.bourns.com/data/global/pdfs/3266.pdf My guess is that the 3266p isn't going to work. The 3266y is even harder to get than the 3266w. The 3266x looks problematic when you go to do the adjustment Rational solutions: 1) Jameco shows the 3266w as ships today in 5 K ohms. Who knows how many they actually have 2) 3266w is available in the 2K ohm flavor at Mouser (lots in stock). If you change R16 and R23 to 1K ohms, the 2K pot should work fine. That makes them the same value as R5 and R6. One fewer line item ... I'd vote for option 2. Bob On Jul 8, 2010, at 2:55 PM, Lester Veenstra wrote: Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Bob, Instead of the 3266 series go to the 3296 series 5K Trimmer, top adjust 652-3296W-1-502LF 7100 in stock 652-3296Y-1-502LF 590 in stock 200 Trimmer, top adjust 652-3296W-1-201LF 1090 in stock 652-3296Y-1-201LF 830 in stock Richard Hi The real question somebody needs to answer is - will it work with side adjust trimmers? If not, then we're going to have to find another source to get the trimmers from. The project on Mouser shows the 3266p trimmer. AFIK the correct part is the 3266w. The board also appears to be laid out for the 3266y. Another alternative is the 3266x. All the details of what's what are at: http://www.bourns.com/data/global/pdfs/3266.pdf My guess is that the 3266p isn't going to work. The 3266y is even harder to get than the 3266w. The 3266x looks problematic when you go to do the adjustment Rational solutions: 1) Jameco shows the 3266w as ships today in 5 K ohms. Who knows how many they actually have 2) 3266w is available in the 2K ohm flavor at Mouser (lots in stock). If you change R16 and R23 to 1K ohms, the 2K pot should work fine. That makes them the same value as R5 and R6. One fewer line item ... I'd vote for option 2. Bob On Jul 8, 2010, at 2:55 PM, Lester Veenstra wrote: Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Hi Ok, It wasn't clear to me weather the 3/8 parts would fit on the layout in place of the 1/4 parts. The larger parts are indeed easier to get. Thanks! Bob On Jul 8, 2010, at 7:26 PM, Richard H McCorkle wrote: Bob, Instead of the 3266 series go to the 3296 series 5K Trimmer, top adjust 652-3296W-1-502LF 7100 in stock 652-3296Y-1-502LF 590 in stock 200 Trimmer, top adjust 652-3296W-1-201LF 1090 in stock 652-3296Y-1-201LF 830 in stock Richard Hi The real question somebody needs to answer is - will it work with side adjust trimmers? If not, then we're going to have to find another source to get the trimmers from. The project on Mouser shows the 3266p trimmer. AFIK the correct part is the 3266w. The board also appears to be laid out for the 3266y. Another alternative is the 3266x. All the details of what's what are at: http://www.bourns.com/data/global/pdfs/3266.pdf My guess is that the 3266p isn't going to work. The 3266y is even harder to get than the 3266w. The 3266x looks problematic when you go to do the adjustment Rational solutions: 1) Jameco shows the 3266w as ships today in 5 K ohms. Who knows how many they actually have 2) 3266w is available in the 2K ohm flavor at Mouser (lots in stock). If you change R16 and R23 to 1K ohms, the 2K pot should work fine. That makes them the same value as R5 and R6. One fewer line item ... I'd vote for option 2. Bob On Jul 8, 2010, at 2:55 PM, Lester Veenstra wrote: Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Hi Another thing I think we need to get on the project is Q4: 512-2N7000TAFarichild's version at 0.13 each. Since I didn't create the project I don't seem to be able to edit it Bob On Jul 8, 2010, at 7:26 PM, Richard H McCorkle wrote: Bob, Instead of the 3266 series go to the 3296 series 5K Trimmer, top adjust 652-3296W-1-502LF 7100 in stock 652-3296Y-1-502LF 590 in stock 200 Trimmer, top adjust 652-3296W-1-201LF 1090 in stock 652-3296Y-1-201LF 830 in stock Richard Hi The real question somebody needs to answer is - will it work with side adjust trimmers? If not, then we're going to have to find another source to get the trimmers from. The project on Mouser shows the 3266p trimmer. AFIK the correct part is the 3266w. The board also appears to be laid out for the 3266y. Another alternative is the 3266x. All the details of what's what are at: http://www.bourns.com/data/global/pdfs/3266.pdf My guess is that the 3266p isn't going to work. The 3266y is even harder to get than the 3266w. The 3266x looks problematic when you go to do the adjustment Rational solutions: 1) Jameco shows the 3266w as ships today in 5 K ohms. Who knows how many they actually have 2) 3266w is available in the 2K ohm flavor at Mouser (lots in stock). If you change R16 and R23 to 1K ohms, the 2K pot should work fine. That makes them the same value as R5 and R6. One fewer line item ... I'd vote for option 2. Bob On Jul 8, 2010, at 2:55 PM, Lester Veenstra wrote: Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
I'll get these 2 corrections in tonight. I was wondering if the 3/8 parts would fit. On Thu, Jul 8, 2010 at 8:07 PM, Bob Camp li...@rtty.us wrote: Hi Another thing I think we need to get on the project is Q4: 512-2N7000TA Farichild's version at 0.13 each. Since I didn't create the project I don't seem to be able to edit it Bob On Jul 8, 2010, at 7:26 PM, Richard H McCorkle wrote: Bob, Instead of the 3266 series go to the 3296 series 5K Trimmer, top adjust 652-3296W-1-502LF 7100 in stock 652-3296Y-1-502LF 590 in stock 200 Trimmer, top adjust 652-3296W-1-201LF 1090 in stock 652-3296Y-1-201LF 830 in stock Richard Hi The real question somebody needs to answer is - will it work with side adjust trimmers? If not, then we're going to have to find another source to get the trimmers from. The project on Mouser shows the 3266p trimmer. AFIK the correct part is the 3266w. The board also appears to be laid out for the 3266y. Another alternative is the 3266x. All the details of what's what are at: http://www.bourns.com/data/global/pdfs/3266.pdf My guess is that the 3266p isn't going to work. The 3266y is even harder to get than the 3266w. The 3266x looks problematic when you go to do the adjustment Rational solutions: 1) Jameco shows the 3266w as ships today in 5 K ohms. Who knows how many they actually have 2) 3266w is available in the 2K ohm flavor at Mouser (lots in stock). If you change R16 and R23 to 1K ohms, the 2K pot should work fine. That makes them the same value as R5 and R6. One fewer line item ... I'd vote for option 2. Bob On Jul 8, 2010, at 2:55 PM, Lester Veenstra wrote: Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Hi A few other things to consider: The MAX 232 is an either / or with a transistor and a couple of resistors. Not a lot of money either way. I'd just go for the MAX and leave out the transistor. Putting the PIC in a skinny 14 pin socket would make things a bit easier if there are software enhancements down the road. Eventually you are going to blow out U4 (the input flip flop). I'd put it in a 14 pin socket. The clock oscillator used is going to depend on what people are trying to do with the gizmo. I suspect that a 20 or 40 MHz clock will be more popular than the 10 MHz part listed. C16 and C17 are selects as well. I think I'd leave the clock as is and toss in a couple of the alternate caps. --- I wonder if there are any parts required to calibrate the assembled unit? So many questions Bob On Jul 8, 2010, at 8:34 PM, Bob Bownes wrote: I'll get these 2 corrections in tonight. I was wondering if the 3/8 parts would fit. On Thu, Jul 8, 2010 at 8:07 PM, Bob Camp li...@rtty.us wrote: Hi Another thing I think we need to get on the project is Q4: 512-2N7000TAFarichild's version at 0.13 each. Since I didn't create the project I don't seem to be able to edit it Bob On Jul 8, 2010, at 7:26 PM, Richard H McCorkle wrote: Bob, Instead of the 3266 series go to the 3296 series 5K Trimmer, top adjust 652-3296W-1-502LF 7100 in stock 652-3296Y-1-502LF 590 in stock 200 Trimmer, top adjust 652-3296W-1-201LF 1090 in stock 652-3296Y-1-201LF 830 in stock Richard Hi The real question somebody needs to answer is - will it work with side adjust trimmers? If not, then we're going to have to find another source to get the trimmers from. The project on Mouser shows the 3266p trimmer. AFIK the correct part is the 3266w. The board also appears to be laid out for the 3266y. Another alternative is the 3266x. All the details of what's what are at: http://www.bourns.com/data/global/pdfs/3266.pdf My guess is that the 3266p isn't going to work. The 3266y is even harder to get than the 3266w. The 3266x looks problematic when you go to do the adjustment Rational solutions: 1) Jameco shows the 3266w as ships today in 5 K ohms. Who knows how many they actually have 2) 3266w is available in the 2K ohm flavor at Mouser (lots in stock). If you change R16 and R23 to 1K ohms, the 2K pot should work fine. That makes them the same value as R5 and R6. One fewer line item ... I'd vote for option 2. Bob On Jul 8, 2010, at 2:55 PM, Lester Veenstra wrote: Safe to get in the water yet? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Parts (Mouser) for the PICTIC II
Has the Mouser list: https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=c7ada9ced0 Been updated with the right trimmers, or is right still up in the air? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
It has not been updated yet. We're still looking for a good replacement. On Wed, Jul 7, 2010 at 10:57 AM, Lester Veenstra les...@veenstras.com wrote: Has the Mouser list: https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=c7ada9ced0 Been updated with the right trimmers, or is right still up in the air? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Not right this sec. Give us a few hours. On Wed, Jul 7, 2010 at 11:08 AM, Lester Veenstra les...@veenstras.com wrote: So now would not be a good time to execute a Mouser Project buy. Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. -Original Message- From: Bob Bownes [mailto:bow...@gmail.com] Sent: Wednesday, July 07, 2010 4:05 PM To: les...@veenstras.com; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Parts (Mouser) for the PICTIC II It has not been updated yet. We're still looking for a good replacement. On Wed, Jul 7, 2010 at 10:57 AM, Lester Veenstra les...@veenstras.com wrote: Has the Mouser list: https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=c7ad a9ced0 Been updated with the right trimmers, or is right still up in the air? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Parts (Mouser) for the PICTIC II
Q4, the FET seems to missing from the Mouser BOM. Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. -Original Message- From: Bob Bownes [mailto:bow...@gmail.com] Sent: Wednesday, July 07, 2010 4:14 PM To: les...@veenstras.com Cc: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Parts (Mouser) for the PICTIC II Not right this sec. Give us a few hours. On Wed, Jul 7, 2010 at 11:08 AM, Lester Veenstra les...@veenstras.com wrote: So now would not be a good time to execute a Mouser Project buy. Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. -Original Message- From: Bob Bownes [mailto:bow...@gmail.com] Sent: Wednesday, July 07, 2010 4:05 PM To: les...@veenstras.com; Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Parts (Mouser) for the PICTIC II It has not been updated yet. We're still looking for a good replacement. On Wed, Jul 7, 2010 at 10:57 AM, Lester Veenstra les...@veenstras.com wrote: Has the Mouser list: https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=c7a d a9ced0 Been updated with the right trimmers, or is right still up in the air? Lester B Veenstra MØYCM K1YCM les...@veenstras.com m0...@veenstras.com k1...@veenstras.com US Postal Address: PSC 45 Box 781 APO AE 09468 USA UK Postal Address: Dawn Cottage Norwood, Harrogate HG3 1SD, UK Telephones: Office: +44-(0)1423-846-385 Home: +44-(0)1943-880-963 Guam Cell: +1-671-788-5654 UK Cell: +44-(0)7716-298-224 US Cell: +1-240-425-7335 Jamaica: +1-876-352-7504 This e-mail and any documents attached hereto contain confidential or privileged information. The information is intended to be for use only by the individual or entity to whom they are addressed. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, be aware that any disclosure, copying, distribution or use of the contents of this e-mail or any documents attached hereto is prohibited. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
